In one case, he allegedly told an undercover ICE agent that he was not going to "disturb his blood" and that he "did not look like he had AIDS," according to an affidavit.

Authorities are unsure how many other patients were victims of the alleged scam and may have received one of these apparent visual AIDS tests.

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"Aspiring immigrants are required to undergo a medical exam as part of the application process to ensure they don't have any medical conditions or diseases that might pose a public health threat," Miguel Unzueta, of ICE in Los Angeles, told the Associated Press.

"By allegedly giving some of his patients a clean bill of health without even examining them, this physician potentially put our communities at risk," Unzueta said.